The reaction of α-haloketones withN-alkyl benzothiazolium salts

Autor:	John D Mee, R. S. Henion, Cataldo A. Maggiulli, J. A. Van Allan
Rok vydání:	1975
Předmět:	chemistry.chemical_classification chemistry.chemical_compound chemistry Hydride Organic Chemistry Salt (chemistry) Merocyanine Phenacyl chloride Photochemistry Medicinal chemistry Alkyl Ion Carbanion
Zdroj:	Journal of Heterocyclic Chemistry. 12:1005-1007
ISSN:	1943-5193 0022-152X
DOI:	10.1002/jhet.5570120537
Popis:	Phenacyl chloride (1a) reacts with the 3-methylbenzothiazolium quaternary salt (2) to give 4-methyl-2-benzoyl-4H-1,4-benzothiazine (4a). A mechanism is discussed. Secondary α-haloketones give benzothiazolines. Merocyanine dyes are formed by the reaction of 2 with carbanions. It is shown that 2 functions as a hydride ion abstractor in the formation of merocyanine dyes.
Databáze:	OpenAIRE
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